61828518 has 16 divisors (see below), whose sum is σ = 125351856. Its totient is φ = 20327040.

The previous prime is 61828513. The next prime is 61828523. The reversal of 61828518 is 81582816.

It is an interprime number because it is at equal distance from previous prime (61828513) and next prime (61828523).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61828513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70143 + ... + 71018.

It is an arithmetic number, because the mean of its divisors is an integer number (7834491).

Almost surely, 2^61828518 is an apocalyptic number.

61828518 is an abundant number, since it is smaller than the sum of its proper divisors (63523338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61828518 is a wasteful number, since it uses less digits than its factorization.

61828518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141239.

The product of its digits is 30720, while the sum is 39.

The square root of 61828518 is about 7863.1112163062. Note that the first 3 decimals coincide. The cubic root of 61828518 is about 395.4239277079.

The spelling of 61828518 in words is "sixty-one million, eight hundred twenty-eight thousand, five hundred eighteen".